Furnace.



N0 MODEL.

, PATENTED MH 31, 1904.1 w. N. BEST.

PURNAGB.4

APPLIoATIoN FILED snPT. 4, 1903. A

i -fl No. venoso..

UNITED i STATES s i Patented May 31, 1904.

.PATENT OFFICE.

i WILLIAM NEWTON- BEST, OF LOS ANGELESy CALIFORNIA, ASSIGNOR TO W. .Ni BEST i INTERNATIONAL CALORIFIC COMPANY, OF LOS ANGELES,l

CALIFORNIA, CORPORATION OF CALIFORNIA.

FURNACE.

SPECIFICATION forming part of Letters Patent No. 761,624, datedMay 31, 1904. Original application filed J une 9, 1902, Serial No. 110,921. Divided and this application filed September 4, 1903. Serial To all' whom if may concern: u n

Be it known that I, WILLIAM NEWTON BEST,

Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Furnaces, of which the following is a specification.

s Thisinvention relates to a furnace for heat-l` ing locomotive and stationary boilers and for IO other purposes.

. The invention is peculiarly applicable to furnaces for burning liquid fuel, but is not I limited the'reto,kbeing also adapted for fur-v naces in which solid fuel is burned.- e I 5 This invention pertains to the construction and formation of the fire-box and the adjuncts thereto for accomplishing the objects herein specified.

. While the inventionis applicable to various 2O kindsof furnaces, it is specially adapted for thefurnaces of locomotive-engines. l In some furnaces it is necessary to line the fire-'box with fire-brick or some other refractory `material. vHeretofore great `difficulty 2 5 has been experienced in holding the fire-brickin the fire-box, especially on vhigh-spced passenger-engines. An object -of this invention is to overcome this difficulty. This I do by using foundation-brickof peculiar construction, provided with lugs or shoulders at the vtop in order to hold in place the superposed bricks, and said superposed bricks may be constructed with tongue and groove in order to hold them in place, and may be further supported by'lugs or studs fastened to the shell of the fire-box.

The requirements of railways are such that locomotives shouldbe capable of doing service on either freight-trains orpassengerltrains;

40 and an object of this invention is to provide v means whereby the furnace for the locomotive may be readily changed from passenger service to freight service, and vice versa.

Another object of the invention is to secure a high degree of efficiency in the consump- (No model.)

A ytion of the fuel and the application of the heat ,where required. 'l a citizen of the United States, residing at Los l Another object of this invention is to prothe Haine maybe directed against the walls fandv recoil under an arch and all portionsof the fire-box may be filled with ame, guard-v ing against uneven expansion and distributing the heat evenly in all portions of the fire-box, as well as to and through the iiues.

In order that perfect combustion may be obtained, I have provided superior means for admitting air into the furnace or fire-box at -a novel and highly-desirable point in addition 6o I 4to the pointsat which the air has heretofore .been admitted, and thus to provide the necessary oxygen and in a measure superheat the same to insure the desired perfect combustion.

In this invention air may be admitted at various advantageous parts 'of the fire-box or furnace.

It is well known that the cross-wall and larch-brick of an oil-burning locomotive-furvtimeI increase the eiiiciency of the furnace by introducing said air to the blaze in a superheated condition at such a place as to increase the combustion over what would otherwise occur. 4

Owing to the peculiar construction and di f-v 8O ferent types of locomotive fire-boxes, which. render necessa'rya varied construction of linings and arch-brick and firebriel,Ido not limit myself to any particular-type or construction,

vkeeping within"the limits of construction of 35 the fire-box andlining practically,-'as "hereinafter described, varyingl in size and construc- -tion to meet the demands of different types of locomotive {ire-boxes.

Another object of the invention is to prov vide a fire-brick lining for the fire-boxes of locomotives which can be easily placed in position and taken apart and replaced and repaired.

Although I have shown and described a structure peculiarly adapted to the burning of liquid fuel, yet certain of the elements of said structure can be dispensed with and the remaining elements usefully employed in furnaces provided with grates.

rIhe accompanying drawings illustrate the invention.

Figure I is a fragmental view of a locomotive furnished with my invention. Fig. II is a sectional plan of the same. Line 1I II in Fig. I indicates the lines of sight from which the view is taken, the sides being sectional below the swell of the lire-box. Dotted lines indicate parts of the construction obscured from view by other parts. Fig. III is an enlarged detail of portions of the bottom lining and dampers attached shown in Fig. I. Fig. IV is a broken plan detail of one of the side walls of the fire-box and lining therefor. The shell of the tire-box is shown in section. Fig. V is a section on line V V, Figs. I and II. Fig. VI is a fragmental detail rear elevation omitting the ire-boX and the ash-pan and showing the arrangement of the dampers .for closing the front air-passage from the ash-pan or airtrunk into the fire-box. The oil-burner is also shown as in place. Fig. VII is a perspective view of one of the foundation-bricks detached. Fig. VIII is a perspective of one of the superposed wall-bricks detached.

1 designates the fire-box; 2, an air-trunk beneath the same, which corresponds to the part ordinarily called the ash-pan in coalburning locomotives. The same is closed from end to end and open at its ends, said open ends being provided with dampers 3 and 4, respectively, for regulating the liow of air into the air-trunk from either or both ends.

5 is an arch in the {ire-box.

6 is a bottom lining beneath the fire-box and over t re air-trunk 2.

7 is an air-passage the walls of which are imperforate,extending from the air-trunk into the lire-box at the cross-wall 8 at the front end of the fire-box. The passage 7 is unbroken and continuous, its walls being imperforate, so that by the time the air is discharged therefrom and introduced to the blaze it is thoroughly heated.

9 designates means for regulating the size ofthe air-'passage 7. Any suitable means may be provided for this purpose. In the drawings the same consists of an adjustable plate held in place by a stud and nut 10.

11 is an air-passage leading from the rear end of the air-trunk into the lire-box below the oil-burner 12.

13 14 designate two adjustable plates which constitute means for regulating the size of the air-passage 11, and thus control the flow of air into the fire-box at the rear end thereof.

15 designates bolts and nuts working in slot j for this purpose. A suitable support is provided for the bottom lining 6. Such support may be angle-irons 16, fastened to the side sheets of the shell 17 of the {ire-box, and a plate 18, resting on said angle irons or brackets 16.

19 designates foundation-bricks carried by said supports 16 and 18, and the same are held in place by the bricks a of the bottom lining 6, said bricks being fitted between said side foundations 19. Each of the foundationbricks is shouldered at the top, the shoulder 2O being desirably constructed along the inner edge of said foundation-bricks 19, leaving a sufficient space between said shoulder and the shell 17 of the lire-box to allow the wallbricks 21 and 22 to fit snugly between the shoulders 20 and the shell 17.

23 is a wedge-brick to lit beneath the section of the arch to give the arch a proper and uniform pitch. The wall-bricks21,which are rearward of the arch, may be taller than the wall-bricks 22, which form the piers of the arch, so that when the bricks are in place, as shown in Fig. I, the wedge 23 is firmly held against rearward movement. The archsections are formed integrally of suitable refractory material and may be beveled to correspond with the slant of the wedge, so that when the wedge is in place on the front wallbricks 22 gravity will act to hold the archsections b from rearward displacement.

24 designates grooves, and 25 tongues on the wall-bricks 21. rlhe rear ends of the wallbricks 22 and of the wedge 23 are provided with corresponding grooves 24 to receive the tongue 25 of the foremost of the wall-bricks 21.

26 is a stud in the shell of theA lire-box to enter the groove 24 of the rearmost of the bricks 21.

27 is an angled stud projectingfrom the side wall or shell of the fire-box to enter a groove 24 in the foremost of the bricks 21. An intermediate one of the bricks 21 may be provided with a notch 20 to receive the angled or headed stud 27. The head of said stud is designed to project into line with the tongue 25 of said brick when said brick is brought into position. The notch 28 will be at the appropriate height to receive the stud 27 when the intermediate brick 21" is brought into position on the foundation-bricks or members 19.

29 is the cap-piece of the cross-wall 8 at the front end of the arch and of the fire-box. The same may be 'constructed of standard lire-brick or may be of larger brick, as shown.

30 is an air-passage extending up from the air-trunk 2 through the cross-wall 8 and cap 29 and through the members or sections I) of the arch and opening at the rear end of the arch, so that the cross-wall and the arch are hollow IOO IIO

and airmay be admitted to the flame as'it bends around the arch, thus giving oxygen at this pointl beneath the flame to complete the combustion. The air. passing through the heated cross-wall and arch-sections will preand the members a ofthe bottom lining 6 will be placed on the support between the foundation-pieces 19. The cross-wall 8 will be built then at the sides of the lire-box. The arch-wall bricks 22 will be placed in position on the foundation-pieces 19. Then the inter-` mediate wall-bricks 21b will be brought into position on the foundation-bricks 19 rearward of the studs .27 and will be slid on top of the foundations 19 until the studsl 27 enter the notches 28, whereupon the heads of said studs project into the line of the tongues 24 of said bricks 21". Then thel foremost and rearwardmost of the wall-pieces 21 will be slid vertically down into place, the one entering the space between the piece 211 and the rearthe front end of the arch 5 and the outlet 32 from the fire-box. In short fire-boxes this combustion-chamber may be dispensed with, as may also one section of the arch, thus to give sufficient space between the arch and the back sheet c of the fire-box. l

It is very important that-the air-inlets 7 and 11 from the air-trunk 2 be regulated to supply the air according to the requirements of the service. This will be done by loosening the nuts 10 or 15, as the case may be, and

sliding the plates 9 or 13 111 to the appropriate adjustment.V The dampers 3 and 4 at the rear and front ends of the air-trunk are l under the control of the engineer by means of connecting-rods 33 and 311, respectively, portions of which are shown in the drawings.

The air-trunk 2 extends or spreads under the entire bottom of the bottom lining 6 and is of considerably-greater cross-sectional area thaln the passage opening at the rear of the arc i.

4In practical operation it will be found necessary to close the damper at the Vend of the air-A trunk toward which the locomotive movesthat is to say, when the locomotive is going forward the damper 4 will be closed and the damper 3 opened, and vvice versa when the motion of the locomotive 1s reversed.

Each of the arch-sections b may be in the form of an arc al and combined springer and pier portions e at the ends thereof, all in a single piece, and the lower ends or faces of the combined springer and pier portions e will desirably be equal in width to the top of the wedge-sections 23, respectively, so that there will be no opening or projection where the firemay act destructively upon the material of 'the'sections or wedges where they come in contact with each other.

When the arch-sections b are not of sufiicient length to span the space between the side sheets of the lire-box, I fill in the space between said side sheets and the ends of said arch-sections with what is known as grog t'. e., a mortar formed ofv fire-clay and sand to hold the arch-sections in place. g designates such grog.

It-is to be understood that one or more archsections may be used without departing from the principle of this invention.

This application is a division of my application filed June 9, 1902, Serial No. 110,921. p

WhatI claim, and desire to secure by Letters Patent of the United States, is-

1. An elongated fire-box having an arch, foundation-bricks extending along the sides of the lire-box under and behind said arch, and tongue and groove `bricks mounted on said foundation-bricks and fitted together.

2. An elongated fire-box comprising a shell,

a support fastened to the shell, a series of 4wall-foundations on said support, means for holding vthe wall-foundations in place, said series extending lengthwise along the opposite sides of. the fire-box having shoulders at the top opposite the shell, and superposed bricks held in place between the shoulder and the Shell.

3. A fire-box lining comprising side pieces of different heightsfitted in place; wedge- IOO IIO

5. A `fire-box having a lining comprising 6. A fire-box having studs in side and rearsheets and tongue-and-groove lining members which are fitted together, an intermediate one of said members being furnished with a noteh to receive one of said studs, and said stud being headed and engaging in a groove of another section.

7 An integral {ire-box arch-section oomprising an are and combined pier and springer portions at the ends thereof.

In testimony whereof` I h ave signed my name to this speeiiieatiomin the presence of two subscribing witnesses, at Los Angeles, in the l0 county of Los Angeles and State of Californie, this 29th dey of August, 1903.

i TILLIAM NIVTON BESIV. Vitnessesz FREDERICK S. LYON, JULIA TowNsnND. 

